7 citations · 9 across the 6 of their papers we have counts for
6 papers
Temperature of free gravitational field: A geometrical perspective
Samarjit Chakraborty, Gareth Amery, Sunil D Maharaj +1
In this paper, using a novel geometrical approach, we relate the concept of the thermodynamic temperature of the free gravitational field, to the non-affinity of real null geodesic…
Ricci-Weyl curvature balance in viscous dissipative collapse: A covariant analysis of singularity censorship
Samarjit Chakraborty, Rituparno Goswami, Sunil D. Maharaj +1
We investigate the cosmic censorship conjecture in a spherically symmetric collapse with shear and bulk viscosity, heat flux, and pressure anisotropy, imposing physically reasonabl…
Gradient conformal stationarity and the CMC condition in LRS spacetimes
Gareth Amery, Peter K S Dunsby, Abbas M Sherif
We study the existence of gradient conformal Killing vectors (CKVs) in the class of locally rotationally symmetric (LRS) spacetimes which generalizes spherically symmetric spacetim…
Relating a Geroch-like boundary and the abstract boundary constructions for spacetimes
Abbas Sherif, Gareth Amery
We construct a Geroch-like boundary (when restricted to geodesic curves, this boundary contains as a subset the Geroch's boundary), which we denote by , and establis…
Causal perturbation theory in general FRW cosmologies II: superhorizon behaviour and initial conditions
G. Amery, E. P. S. Shellard
We describe how causality and energy-momentum conservation constrain the superhorizon behaviour of perturbation variables in a general FRW spacetime. The effect of intrinsic curvat…
Causal perturbation theory in general FRW cosmologies I: energy momentum conservation and matching conditions
G. Amery, E. P. S. Shellard
We describe energy--momentum conservation in relativistic perturbation theory in general FRW backgrounds with causal source terms, such as the presence of cosmic defect networks. W…